000 AGXX40 KNHC 021629 MIMATS Marine Weather Discussion NWS National Hurricane Center Miami FL 1229 PM EDT Sun Apr 2 2017 Marine Weather Discussion for the Gulf of Mexico, Caribbean Sea, and Tropical North Atlantic from 07N to 19N between 55W and 64W and the Southwest North Atlantic including the Bahamas ...GULF OF MEXICO... Deep low pressure was analyzed from north central Mexico to central Texas, while weak ridging extended across the northeast Gulf along 30N. The pressure gradient is tight enough to support fresh to strong southeast flow and resultant 6-8 ft seas across the central gulf, with moderate to fresh southeast flow elsewhere. Seas are 4-6 ft in the western Gulf, and 1-3 ft in the eastern Gulf. The low pressure will shift to the mid Mississippi Valley through Monday dragging a cold front into the northwest Gulf by early Monday. The front will weaken as it moves into the central Gulf by Monday evening, then will stall through early Tuesday with its remnants lifting north through Tuesday, with high pressure ridging building in across the area from the east. A stronger cold front will move into the northwest Gulf by early Wednesday, sweeping across the southeast Gulf by Thursday night, with high pressure building in its wake through Friday night. Fresh to near gale force winds will initially follow the front, weakening to moderate to fresh by early Thursday. The strongest winds are expected offshore of Veracruz Mexico, however model guidance continues to back down from the possibility of gale force winds. ...CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... High pressure over the central subtropical Atlantic will support moderate to fresh trades over most of the Caribbean except fresh to strong trades over the Gulf of Honduras and over the south central Caribbean the next several days. Seas will peak near 9 to 12 ft north of the Colombia coast at night, when the strongest winds are forecast to occur. Large northerly swell of 7 to 9 ft spreading over the tropical Atlantic waters will continue through Monday night before the swell decays below 8 ft. Additional northerly swell of 7 to 8 ft may arrive by the end of the week. ...SW N ATLANTIC INCLUDING THE BAHAMAS... An old frontal boundary in the form of a trough extends from 31N60W to 28N67W while a reinforcing cold front lags behind reaching from 31N65W to 29N71W. Ridging is south of the boundaries extending from 1021 mb high pressure near 25N48W to the central Bahamas. Mainly light to gentle winds were observed across the basin, except moderate to fresh in the northeast corner over zone AMZ115 near the boundaries. Seas are 6-9 ft in zone AMZ115 in northerly swell, as well as in zone AMZ127, with 4-7 ft elsewhere, except 1-3 ft w of 77W and also inside the Bahamas. The front and trough will exit the area east of 65W through tonight. Southerly winds will increase off northeast Florida Monday night through Tuesday ahead of an approaching cold front. The front will likely lift by just north of the area before entering the waters off northeast Florida, leaving a ridge in place along roughly 28N. This pattern will repeat by late Wednesday ahead of a stronger cold front expected to move off the Florida coast Thursday, followed by strong northwest winds. The front will sweep eastward reaching from near Bermuda to the Windward passage by late Friday night. $$ .WARNINGS...Any changes impacting coastal NWS offices will be coordinated through AWIPS II Collaboration Chat, or by telephone: .GULF OF MEXICO... None. .CARIBBEAN SEA AND TROPICAL N ATLANTIC FROM 07N TO 19N BETWEEN 55W AND 64W... None. .SW N ATLANTIC INCLUDING THE BAHAMAS... None. $$ *For detailed zone descriptions, please visit: http://www.nhc.noaa.gov/abouttafbprod.shtml#OWF Note: gridded marine forecasts are available in the National Digital Forecast Database (NDFD) at: http://www.nhc.noaa.gov/marine/grids.php For additional information, please visit: http://www.nhc.noaa.gov/marine $$ .Forecaster Lewitsky. National Hurricane Center.